

InterviewSolution
Saved Bookmarks
1. |
Which of the following groups shows the strongest` -R` effect?A. `-COOR`B. `-CN`C. `-NO_(2)`D. `-CHO` |
Answer» Correct Answer - C `-R` effect of different substituents generally follows the order: `(CH_(3))_(3)N^(+)gt -NO_(2)gt - CNgt -SO_(3)H gt -CHO gt -COMegt -CO_(2)H` |
|